21
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by McClintock, Russell.
Published 2008
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23
by Stahr, Walter.
Published 2012
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24
by Gienapp, William E.
Published 2002
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25
by White, Ronald C. 1939-
Published 2005
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26
by Crofts, Daniel W.
Published 1989
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27
by Dirck, Brian R., 1965-
Published 2001
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28
by Robertson, James I.
Published 2011
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29
by McPherson, James M.
Published 2008
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30
by Krannawitter, Thomas L., 1969-
Published 2008
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Published 2007
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32
by Epstein, Daniel Mark.
Published 2004
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33
by O'Harrow, Robert,
Published 2016
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34
by Goodwin, Doris Kearns.
Published 2006
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35
by White, Ronald C. 1939-
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36
by Panzer, Mary.
Published 1997
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37
by LaFantasie, Glenn W.
Published 2008
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38
by Cushman, Stephen, 1956-
Published 2014
Book Electronic
39
by Spar, Ira, 1943-
Published 2017
Book Electronic
40
by Kreiser, Lawrence A., 1969-
Published 2011
Book Electronic